178 BOTA]S[T. 



Lagophylla^ ramosissima, Nutt. Stems 3 12' high, at first softly 

 pubescent or villous, as are the leaves and involucre, at length smooth and 

 much-branched ; primary leaves oblong-spatulate, the lowest ones opposite, 

 petioled, denticulate, caducous, the upper ones alternate and sessile, later 

 ones linear-oblong and passing into bracts appressed to the involucre ^ invol- 

 ucre 5-leaved, the scales flat on the back, the edges infolded and meeting, 

 completely enclosing the fertile achenia ; rays very short, cuneate, 3-cleft ; 

 receptacle with 5 subfoliaceous scales surrounding the 5-6 perfect but 

 infertile disk-flowers ; achenia smooth ; pappus none. — Oregon and California. 

 Foothills of the West Humboldt Mountains and Havallah Range, Nevada ; 

 5-5,500 feet elevation ; June-September. (624.) 



Madaeia^ elegans, DC. Everywhere hispid, many of the hairs gland- 

 uliferous ; stem 1-3° high, branching ; leaves 1-3' long, 2-3" wide, closely 

 sessile. Var. coeymbosa has the leaves hispid but glandless. — Both forms 

 are common in Oregon and California, and were also collected near Carson 

 City, Nevada, by Dr. Anderson. 



Madia^ eacemosa, T. & Gr. Stems strict, 6-2° high, afterward 

 branched above, hirsute, as are the oblong-linear leaves; the branchlets, 

 uppermost leaves and the involucres glandular also ; heads racemose on the 

 branches ; ray-achenia flat, those of the disk somewhat angled on the sides. — 

 Leaves 1-3' long, 2-4" wide. Washington Territory to California ; Virginia 

 City, (Bloomer.) From Western Nevada to the East Humboldt Mountains; 

 5-7,000 feet elevation ; June-September. (625.) 



' LAGOPHYLLA, Nutt. Genus very near to Semizonia, and distinguished from it only by the less 

 convex involucral seales, completely enclosing the fertile achenia, which are truly obcompressed, nearly 

 flat on the hack and slightly oarinate on the inner face ; a distinction "which ■will scarcely be con- 

 sidered sufiQoient. There are three reputed species, all found west of the Eocky Mountains. 



'MADAEIA, DC. Heads many-flowered; rays 10-20, pistillate, fertile, ligules 2-3 times as long as 

 the involucre, cuneate, 3-cleft ; disk-flowers perfect but Infertile ; the corollas tubular-funnel-shaped, 

 5-toothed. Involucre sub-globose, the scales as many as the rays, incurved, conduplicate, and enclosing 

 the fertile achenia. Eeceptacle convex, villous, the margin furnished with 1-2 rows of chaffy scales 

 inside of the rays. Branches of the style in the disk-flowers with lanceolate hispid appendages. Achenia 

 compressed, somewhat incurved, the back thicker than the inner edge, broader towards the top, destitute 

 of pappus.— Annual herbs of California, etc., everywhere hairy and often furnished with minute stalked 

 glands ; leaves linear or lanceolate ; heads showy, 12-15" broad, the rays yellow, sometimes pui-ple-spotted 

 at the base. 



8 MADIA, MOLINA. Heads few— many-flowered ; rays 5-12, pistillate, fertile, the ligule slightly ex- 

 serted and 3-cleft ; disk-flowers perfect, fertile, the corollas tubular, 5-toothed. Eeceptacle flat, smooth, 

 and bearing 1-2 series of chafiy scales inside the ray-flowers, usually somewhat united. Style of the 

 disk-flowers with lanceolate acute branches, minutely hispid on the margins. Achenia of the ray oblong- 

 obovate, slightly incurved, compressed, the sides usually somewhat angled ; of the disk straight, com- 

 pressed, not angled. Pappus none.— Annuals or biennials of Western America, with the aspect oi 

 Madaria, and similar hirsute and often glandular stems, leaves and involucre ; the rays less showy. 



